Control of Angular Intervals for Angle-Multiplexed Holographic Memory

概要

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In angle-multiplexed holographic memory, the full width at half maximum of the Bragg selectivity curves is dependent on the angle formed between the medium and incident laser beams. This indicates the possibility of high density and high multiplexing number by varying the angular intervals between adjacent holograms. We propose an angular interval scheduling for closely stacking holograms into medium even when the angle range is limited. We obtained bit error rates of the order of $10^{-4}$ under the following conditions: medium thickness of 1 mm, laser beam wavelength of 532 nm, and angular multiplexing number of 300.
Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
2009-03-25